baber/WOPTO huggingface dataset:
Patent CA-2010852-A1 (CA)
Inventor: THEURER JOSEF
IPC: E01B27/16
Filed: 1990-02-23
Abstract: A mobile track leveling, lining and tamping machine comprises four ballast tamping units mounted between the undercarriages of the machine and immediately preceding the rear undercarriage in the operating direction.  The ballast tamping units are mounted for independent transverse and vertical adjustment with respect to the machine frame by power drives, a respective one of the ballast tamping units being arranged at the gage side and the field side of each rail, and each ballast tamping unit comprising a pair of vibratory tamping tools reciprocable in the direction of the track and immersible in the ballast with a respective one of the ties positioned between the tamping tools.  A carrier frame for the four ballast tamping units is pivotal about a substantially vertical axis constituted by a line of intersection between a vertical plane of symmetry extending in the longitudinal direction of the machine and a vertical plane of symmetry extending transversely thereto and passing between the pairs of tamping tools of the four ballast tamping units and a power drive pivots the carrier frame about the vertical axis whereby the pairs of tamping tools may be centered with respect to obliquely positioned ties.          A track leveling and lining unit is mounted on the machine between the two undercarriages and immediately preceding the ballast tamping units in the operating direction, and a leveling and lining reference system controls the track leveling and lining unit operation.
Patent CA-2012869-A1 (CA)
Title: Black heat portable electric furnace
Inventor: LAZARIDIS STEVE
IPC: F24H3/02
Filed: 1990-03-22
Abstract: ABSTRACT OF THE DISCLOSURE           An electric black heat furnace has a housing with oppositely disposed perforated walls which serve respectively as a cold air inlet wall and a hot air outlet wall.   The housing encloses an electric heating element which is located adjacent to the air inlet wall and an electric fan assembly is adapted for mounting on the air inlet wall.  A control panel is mounted on the housing and a thermostat is also mounted on the housing in operable proximity to the cold air intake wall. The  control  panel  includes  switches  for  connecting  and disconnecting the power supply to the heating element according to the setting of the thermostat connected in a gate driving circuit of switches.
Patent CA-2014324-A1 (CA)
Inventor: SLATER JACK
IPC: G05G5/28
Filed: 1990-04-10
Abstract: IMPROVEMENTS TO AUTOMOBILE ANTI-THEFT DEVICE Abstract of the Disclosure This invention relates to improvements made to an anti-theft device for conventional motor vehicles and the method by which the device is made, which device secures the hand brake lever to the gear shift lever. A device is already known, which is made up of two limbs which are pivotally connected together. This invention adds an additional improvement which allows for further rotation of the limbs on an additional axis and further adds an expanded bore in the clamping arm which permits the device to fit a wide range of automobiles. As well the device itself and and the method by which it is constructed have also been improved to eliminate virtually all welding except in the area of the locking element.
Patent CA-2017576-A1 (CA)
Inventor: RUCH MARK H
IPC: B65H1/04
Filed: 1990-05-25
Abstract: APPARATUS FOR CONTROLLING THE MOVEMENT OF TRAYS OF PAPER WITHIN AN ELECTROPHOTOGRAPHIC PRINTER                 ABSTRACT OF THE DISCLOSURE      A paper handling apparatus 10 includes a plurality of paper receiving trays 12, 14, 16, 18 arranged vertically in close proximity to one another with a single paper feeding mechanism 20 provided to operate with all of the trays 12, 14, 16, 18.  The paper feeding mechanism 20 moves vertically to selectively engage any selected one of the plurality of trays 12, 14, 16, 18. The vertical arrangement of the trays 12, 14, 16, 18 dictates that the trays are horizontally moveable between a first unselected position, where the trays are substantially vertically aligned with the one another, and a second selected position where the tray is horizontally moved to intersect the vertical path of the paper feeding mechanism 20.  Horizontal movement of the trays 12, 14 16, 18 is effected by a single electric motor 28 rotatably attached to a shaft 30, which carries a series of gears 32, 34, 36, 38 that interact with a corresponding rack 40, 42, 44, 46 disposed on each of the trays 12, 14, 16, 18, respectively.  A transmission 48 links the motor 28 to the gears 32, 34, 36, 38 to selectively drive one of the gears and move one of the trays between the selected and unselected positions.
Patent CA-2017631-A1 (CA)
Title: Styrene polymer molding material and process for preparing same
Inventor: YAMASAKI KOMEI
IPC: D01F6/22
Filed: 1990-05-28
Abstract: ABSTRACT OF THE DISCLOSURE    Disclosed are a styrene polymer molding material which has a high degree of syndiotacticity, a weight average molecular weight of 50,000 or more, and at least one melting point  of 285°C or higher, and a process for producing the same by melting a styrene polymer having a high degree of syndiotacticity and then molding it under a stress of 1 x 106 dyne/cm2 or higher.    The styrene polymer molding material of the present invention has excellent heat resistance.  In addition, according to the process of the present invention, the above polymer molding material having excellent heat resistance can be prepared by a simple operation, and thus has marked advantages for practical use.
Patent CA-2017635-A1 (CA)
Title: Coal gasification reactor
Inventor: HASENACK HENDRIKUS J A
IPC: C10J3/48
Filed: 1990-05-28
Abstract: The slugging efficiency of a coal gasification process is increased to 90% by tangential firing at small angles and the installation of a stack of specific length over diameter ratio between the reactor outlet and the quench inlet. In this manner slag lifting and slag entrainment at the quench inlet - stack outlet are prevented.
Patent CA-2019567-A1 (CA)
Title: Exhaust gas recirculation valve assembly
Inventor: GREY THADDEUS J
IPC: F02M25/07
Filed: 1990-06-21
Abstract: An exhaust gas recirculation valve assembly for controlling the recirculation of exhaust gas in an internal combustion engine having a base with an exhaust gas chamber formed therein, a valve member mounted within the exhaust gas chamber for metering the flow of exhaust gas therethrough, a one piece bearing having upper and lower bearing members for precise positioning of the valve member within the exhaust gas chamber, and a valve stem support assembly for mounting the valve stem relative to the actuator having means for allowing lateral movement between the actuator and the valve member thereby eliminating side-to-side loading and resultant binding of the precisely positioned valve member within the bearing.
Patent CA-2019742-A1 (CA)
IPC: B60K35/00
Filed: 1990-06-25
Abstract: A virtual image display including an image hologram, a dispersion compensating hologram for providing playback illumination to the image hologram, and an illumination source for providing playback illumination to the dis-persion compensating hologram.
Patent CA-2020011-A1 (CA)
Inventor: TAKAGI MINORU
IPC: H05B6/80
Filed: 1990-06-27
Abstract: ABSTRACT OF THE DISCLOSURE    An improved apparatus  for heating and cooking foods includes an oven frame having an interior formed as an oven chamber, a turn dish turnably supported on the bottom of the oven  chamber,  a  plurality  of  rollers  rotatably disposed between the turn dish and the outer peripheral region of a bottom plate, and holding means projecting downward of the bottom of the turn dish.  The rollers are rotatably received in an annular groove around the outer peripheral region of the  turn  dish.   The  holding  means  comprises  an  annular trough having a V-shaped sectional shape.   The lowermost part of the annular trough is located lower than the rolling surface for the rollers.  The holding means may comprise a plurality of downward projections  formed around a single circle in an equally spaced relationship.
Patent CA-2020952-A1 (CA)
Title: Audible tag for magnetic electronic article surveillance systems
Inventor: DRUCKER FRANK
IPC: H04R17/10
Filed: 1990-07-11
Abstract: Abstract of the Disclosure A tag for use in a magnetic article surveillance system comprising an antenna means responsive to a transmitted magnetic signal and a piezolectric means responsive to the antenna means for generating an audible acoustic signal.
Patent CA-2022889-A1 (CA)
IPC: A01M23/30
Filed: 1990-08-08
Abstract: A bail-type animal trap for small rodents and the like, having a self-setting triggering mechanism. The trap includes a spring-loaded, bail-type striker which is hinged to the upper surface of the base.  The striker is releasably retained in the cocked position by a resilient latch which is connected by a wire or rod to a trigger plate which is adapted to hold a piece of bait.  The trigger plate engages a stop affixed to the base.  The trigger plate includes an integral catch for engaging the stop, and an integral fulcrum which causes the trigger to release when it is either lifted, depressed, or moved sideways.  The striker further includes a self-setter which returns the trigger plate to the set position each time the trap is sprung.
Patent CA-2023251-A1 (CA)
Title: Water-soluble or water-dispersible photopolymerizable mixture and its use for printing purposes
Inventor: LITTMANN DIETER
IPC: G03F7/033
Filed: 1990-08-14
Abstract: O.Z. 0050/41056 Abstract of the Disclosure:  The novel water-soluble or water-dispersible photopolymerizable mixture, comprising the following components:     A)   from 46 to 53% by weight, based on the total weight of the mixture, of a binder consisting of a1) from 20 to 80% by weight, based on the total weight of the binder, of a polyvinyl alcohol resin having a degree of hydrolysis of from 75 to 85% and a number average degree of polymer-ization ?n of from 250 to 350, a2)  from 20 to 80% by weight, based on the total weight of the binder, of one or more graft copolymers of vinyl alcohol and alkylene oxides having a degree of hydrolysis of more than 80% containing from 10 to 40% by weight of alkylene oxide units and possessing a weight average degree of polymerization ?w of from 300 to 500, and a3)  from 0 to 60% by weight, based on the total weight of the binder, of one or more polyvinyl alcohol resins having a degree of hydrolysis of more than 75% and a number average degree of polymerization ?n of from 350 to 450, B)   from 35 to 44% by weight, based on the total weight of the mixture, of one or more water-soluble mono-functional monomers, C)   from 6 to 9% by weight, based on the total weight of the mixture, of one or more polyfunctional monomers and D)   from 0.4 to 5% by weight, based on the total weight of the mixture, of one or more photopolymerization initiators is very useful for the production of photopolymerizable recording  layers  of  novel  photosensitive  recording elements.  The said recording elements are particularly suitable for the production of newspaper printing plates.
Patent CA-2026096-A1 (CA)
Title: Induction motor switchable between series delta and parallel wye
Inventor: SATAKE TOSHIHIKO
IPC: H02P5/74
Filed: 1990-09-24
Abstract: An induction motor of the invention,  including a single rotor formed in one-piece and first and second stators disposed side-by-side, has a phase-changing device for varying the phase difference between the rotational magnetic field generated by the first stator and that generated by the second stator.  The phase-changing device comprises at least first and second  short-circuiting  switches  for  short-circuiting  or disconnecting the series-junction nodes of the stator windings.          The motor presents three different torque curves suitable for starting operation, intermediate speed operation, and normal or steady-state operation by the switching operation of the first and second switches.
Patent CA-2026533-A1 (CA)
Title: Biphenylmethane derivative and pharmacological use
Inventor: MIYAKE KAZUTOSHI
IPC: C07D235/02
Filed: 1990-09-28
Abstract: Abstract The biphenylmethane derivative having the formula (I) is useful to prevent and treat hypertension and cardiac failure.                     in which R1 is hydrogen, an alkyl, a cycloalkyl, a halogenated alkyl, -S-R7, -SO2-R7, -C?C-R7 or -(CH2)p-OR7, R7 being hydrogen, an alkyl, a cycloalkyl or a halogenated alkyl, p being zero or 1, -A1=A2-A3=A4- is -CH=CH-CH1=CH-, -N=CH-CH=CH-, -CH=N-CH=CH-, -CH=CH-N=CH-, -CH=CH-CH=N- or -CH=N-CH=N-, R2 and R3 are each hydrogen, a halogen, a lower alkyl, a lower alkoxy, a carbamoyl or cyano, R4 is hydrogen or a lower alkyl, R5 is 1H-tetrazol-5-yl, carboxyl (-COOH) or a carboxylic ester and R6 is hydrogen, a halogen, hydroxyl or a lower alkoxy, or a pharmacologically acceptable salt thereof.
Patent CA-2036042-A1 (CA)
Inventor: LABIANCA VINCENT S
IPC: B29C33/04
Filed: 1991-02-08
Abstract: Injection molding machine hot runner systems with gate bushing cooling capabilities.
Patent CA-2037163-A1 (CA)
Title: Hafnium-catalyzed transesterification
Inventor: MIRABELLI MARIO G L
IPC: C07C67/03
Filed: 1991-02-27
Abstract: ABSTRACT An ester of a carboxylic acid is prepared via a transesterification reaction which comprises reacting a lower alkyl ester of carboxylic acid with a higher alkyl alcohol in the presence of a catalyst consisting of a hafnium chelate derived from hafnium tetrachloride, bis(alkoxide)hafnium dichlorides, or hafnium tetraalkoxides in the presence of 1,3-dicarbonyl compounds.
Patent CA-2037270-A1 (CA)
Inventor: HASHIMOTO KOJI
IPC: C22C45/04
Filed: 1991-02-27
Abstract: Highly active amorphous alloy catalysts for conversion of carbon dioxide to hydrocarbons, consisting of at least one element selected from the group of Ni and Co, at least one element selected from the group of Nb, Ta, Ti and Zr which are effective for formation of the amorphous structure by coexisting with at least one element selected from the group of Ni and Co, and at least one element selected from the group of Ru, Rh, Pd, Ir and Pt effective for the high catalytic activity, the alloys being activated by immersion into hydrofluoric acids.
Patent CA-2037767-A1 (CA)
Title: Conversion of amines to hydroxylamines
Inventor: WITTMAN MARK D
IPC: C07C239/18
Filed: 1991-03-07
Abstract: Abstract of the Disclosure Oxidation of primary amines to primary hydroxylamines using a dialkyl dioxirane is described. This new method is utilized to prepare aliphatic non-axial hydroxylamines from corresponding primary amino-substituted sugar derivatives and hydroxylamino acid derivatives.
Patent CA-2040134-A1 (CA)
Title: A delay line providing an adjustable delay
Inventor: MOLIN STUART B
IPC: H03H11/26
Filed: 1991-04-10
Abstract: First and second complementary input voltages control current flow through first and second switches (e.g. semiconductor devices) each respectively connected in first and second control circuits with a first constant current source. When the input voltages change, current starts to increase through one control circuit to produce increases in the voltage drop across an impedance (e.g. resistor) in such circuit. When a particular voltage difference is produced between the impedance voltage and an adjustable biasing voltage, a third switch (e.g.  semiconductor device) closes to produce a first resultant voltage. The resultant delay in the third switch closure is dependent upon the adjustable magnitude of the biasing voltage. As the voltage increases across the impedance in the one control circuit, the voltage decreases across an impedance in the other control circuit, causing a second resultant voltage to be produced at a fourth switch (e.g. semiconductor device). The resultant voltages are respectively introduced to fifth and sixth switches (e.g. semiconductor devices) each connected in a circuit with an individual one of second and third constant current sources. When the resultant voltages change, the particular one of the fifth and sixth switches receiving an increase in current passes a portion of this current through the associated current source and another portion of this current through a coupling member and the other current source. This delays the state of non-conductivity of the switch connected to the other current source. Output voltages further delayed from the input voltages are accordingly obtained from the fifth and sixth switches.
Patent CA-2040875-A1 (CA)
Title: Anti-replenishing and discharge device
Inventor: CAIN STEPHEN J
IPC: B67D3/00
Filed: 1991-04-19
Abstract: ABSTRACT OF THE INVENTION            An  anti-replenishing  and  discharge  device  for  permitting container stored liquids to be discharged from a container in a first direction and inhibiting replenishing of a container in a second direction; comprising a housing having a discharge passage therethrough for communication with container, tamper guard flow regulator   disposed   within   the   discharge   passage,   and unidirectional flow valve disposed within discharge passage for permitting the communication of liquid from the container through the discharge passage in a first direction when flow valve is in an open position, and to close discharge passage when flow valve is in a closed position so as to inhibit replenishing of the container in the second direction.
Patent CA-2041510-A1 (CA)
Inventor: CLARK CRAIG A
IPC: A47C5/04
Filed: 1991-04-30
Abstract: A wire rod type stacking office furniture chair com-prising, including a separate chair seat and back for same, a pair of endless rodding members each defining along the left and right sides of a chair a lower quadrilaterally contoured base frame having lower floor engaging runners that may be glide equipped and upper runners above the chair lower runners that support the chair seat between them, with the rodding members adjacent the rear of the chair each defining a similar vertically oriented upright, chair shoulder forming loop, between which shoulders the chair back is supported; the chair back comprises an assembly including a mounting pan fixed between the chair right and left side shoulder forming loops, an inner opaque back member, and an outer opaque back member, with such back members being secured together in opposed relation on either side of the mounting pan and in encapsulating relation to such pan, by interfitting devices that are also concealed, and with the chair seat also comprising an assembly including an opaque mounting seat pan, defining an upwardly facing seat surface and an underside facing downwardly, and a bracket plate fixed to each of the rodding member upper runners; the seat pan and bracket plates are arranged to provide interfitting devices similar to those employed in connection with the seat back, for anchoring these chair components to the chair frame by, in the case of the chair back, movement of the back inner and outer members relative to the back mounting pan, and in the case of the chair seat, movement of the seat pan relative to the chair bracket plates.
Patent CA-2042656-A1 (CA)
Inventor: EMMETT JOHN R
IPC: H04N7/04
Filed: 1991-05-15
Abstract: A system for the measurement of delay between a video signal and an audio signal includes a tone-burst generator (9) which marks an audio signal (3).  The mark is then used as a reference which is detected at both signals' destination (15) and the timing delay between the signals is displayed (19) and may be corrected (17,18).
Patent CA-2042897-A1 (CA)
Inventor: TORII TAKAYOSHI
IPC: C08L61/04
Filed: 1991-05-17
Abstract: ABSTRACT OF THE DISCLOSURE         A  composite  material  wherein  a  mixture  of  a phenolic or furan resin and an inorganic filler as matrix materials is incorporated in an inorganic fiber or heat-resistant  organic  fiber  in  the  form of  a  long  fiber bundle.    The  composite  material  has  excellent characteristics  such as  heat  resistance,  strength  and alkali  resistance.   The present  invention can provide substitutes used in place of concrete reinforcing steel bars or steel frames which can be used in structures for building and civil engineering.
Patent CA-2043289-A1 (CA)
Title: Medi-lock
Inventor: INTINI THOMAS D
IPC: B65D50/04
Filed: 1991-05-27
Abstract: The present invention provides a child resistant container suitable for packaging of medicines and the like wherein a bottom portion designed to hold the product and a cover member have first and second cooperative locking devices with the first locking device permitting a certain limited movement while maintaining a locked position such that when the second locking device is moved to an unlocked position, the first locking device remains locked until a second step or operation is performed thereon. Operation of the second locking device to unlock it tends to reinforce the locking action to the first locking device to prevent simultaneous unlocking of both locking devices.
Patent CA-2043639-A1 (CA)
Title: Methane recovery process for the separation of nitrogen and methane
IPC: F25J3/02
Filed: 1991-05-31
Abstract: IMPROVED METHANE RECOVERY PROCESS FOR THE       SEPARATION OF NITROGEN AND METHANE                      ABSTRACT          A cryogenic nitrogen rejection unit with improved methane recovery wherein higher quality nitrogen reflux is generated by successive vapor partial condensations and the nitrogen is introduced into a separation column preferably in a cascade fashion.
Patent CA-2044906-A1 (CA)
Title: Beta-lactams as antihypercholesterolemics
Inventor: CHABALA JOHN C
IPC: A61P9/10
Filed: 1991-06-18
Abstract: TITLE OF THE INVENTION .beta.-LACTAMS AS ANTIHYPERCHOLESTEROLEMICS            ABSTRACT OF THE DISCLOSURE         This application relates to compounds of formula (I), which are useful as antihyperchol-esterolemic agents.       (I)
Patent CA-2047823-A1 (CA)
Title: Medicament administering device
Inventor: CROWTHER TERENCE R
IPC: A61M15/00
Filed: 1991-07-24
Abstract: ABSTRACT              A method of providing a unit dosage form of a finely divided solid medicament for inhalation by a patient is provided, which comprises engaging the base layer of a container of the medicament to burst the lid layer of the container and discharge the medicament into a chamber for inhalation. The container may be in a blister pack of such containers,  each blister containing up to 10mg of medicament.  The container may be held in the first chamber of a suitable device and a discharge element of the device used to burst the container and discharge its contents into a second chamber.
Patent CA-2048008-A1 (CA)
Inventor: METTE MANFRED
IPC: B67C3/22
Filed: 1991-07-26
Abstract: ABSTRACT           Bottles, cans or other types of containers are filled with accurately metered quantities of a liquid by employing a number of discrete filling units which orbit about a vertical axis and are provided with metering chambers receiving liquid from a main source of supply.  The metering chambers are overfilled with liquid, and the excess is collected and returned to the main source.  The filling units and certain other parts (such as an annular vessel of the main source) of the apparatus can be of modular design to facilitate storage and transport of modules which are assembled into a container filling apparatus at the filling plant.  The method and apparatus can be utilized with advantage for the admission of metered quantities of carbonated and/or pulp-containing beverages into bottles or cans.  The capacities of the metering chambers can be varied within a desired range, and each filling unit is provided with a first outlet which serves to admit metered quantities of liquid from the respective metering chamber into successive containers, and with a second outlet which is used to admit liquid from the vessel into the respective metering chamber.